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33 Cards in this Set
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- Back
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1. X rays and gamma rays are similar in that they both are electromagnetic radiation. They differ in their origin. a. true b. false |
A |
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2. Gamma and x rays are not particulate and have a. no mass or weight b. no mass but some weight c. some weight but no mass d. both a and b |
A No mass or weight |
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3. An electron has what type of charge |
Negative |
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4. The energy of x-rays and gamma rays is measured in Kev. Kev stands for: a. hundred electron volts b. thousand electron volts c. million electron volts d. trillion electron volts |
B Thousand electron volts |
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5. X-rays with an energy level of 1.02 million electron volts (Mev) or greater will create Ionization by a method called: a. pair production b. compton effect c. photoelectric effect d both 1 and 2 |
A. Pair production |
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6. Which of the following particles travel around the nucleus of an atom a. protons b. neutrons c. electrons d. betatrons |
C. Electrons |
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7. The process of making an element radioactive in a nuclear reactor is called a. activation b. radioactive c. emissivity d. specific activity |
A. Activation |
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8. The number of protons in the nucleus of an atom equals the number of _____ in the shells traveling around the nucleus a. gamma rays b. neutrons c. electrons d. alpha particles |
C.Electrons |
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9. The number of disintegration occurring in a given amount of a radio isotope during a given length of time is called ____ of the isotope a. radioactivity b. activity c. strength d. curie strength |
B. Activity |
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10. Rutherford determined the alpha particles have a ______ a. no charge b. negative charge c. neutral charge d. positive charge |
10.D Positive charge |
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11. Any substance that can not be separated into different substances by ordinary chemical methods is a. atom b. element c. compound d. mixture |
11.B Element |
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12. A positron has the same mass as an electron but carries a negative charge. a. true b. false |
12.B False |
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13. The total number of protons and neutrons in the nucleus primarily determines the ______ of an element a. structure b. physical properties c. amu d. isotope |
13.BPhysical properties |
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14. All isotopes are radioactive a. true b. false |
14.B False |
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15. An atom is made up of a. protons b. neutrons c. electrons d. all of the above |
15.D Protons Neutrons Electrons |
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16. Atoms of the same element having different numbers of neutrons are called _____ of the element a. by products b. derivatives c. compounds d. isotopes |
16.D Isotopes |
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17. Alpha and beta particles are classified as ____ radiation a. passive b. Isotope c. particulate d. energizing |
17.C Particulate |
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18. One Becquerel is equal to 37 billion disintegrations per second 37 billion disintegrations per minute one disintegration per second one disintegration per minute |
18.C One disintegration per second |
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19. Which of the materials below is naturally radioactive? a. cobalt 60 b. iridium 192 c. deuterium d. radium |
19. D Radium |
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20. Gamma rays emitted from a radioactive isotope have a. one or more specific energy levels or wavelegths b. a wide range of energy levels depending on the curie strength\ c. one specific energy level or wavelength depending on its curie strength d. a wavelength equal to ultraviolet waves |
20. A One or more specific energy levels or wavelengths |
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21. Any action that disturbs the electrical balance of the atoms which make up matter is referred to as: a. ionization b. dispersion c. stabilization d. radiation |
21. A Ionization |
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22. Most radioactive isotopes are man-made and produced in Nuclear reactors a. true b. false |
22. A True |
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23. Gamma rays have the same characteristics as x-raysand have what type of charge? a. positive charge b. negative charge c. no charge d. varying charge |
23. C No charge |
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24. The atomic number refers to the number of _____ in the nucleus of an atom a. atoms b. neutrons c. electrons d. protons |
24. D Protons |
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25. Radiation travels at the speed of a. sound b. light c. 186000 miles per hour d. 186,000 miles per minute |
25. B Light |
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26. Gamma and x-rays are also called a. photons b. ionization c. ions d. deuteron radiation |
26. A Photons |
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27. An electron volt is the amount of energy equal to the energy gained by a. one electron when it is accelerated by one volt b. one neutron when it is accelerated by one volt c. one proton when it is accelerated by one volt d. one electron when it is accelerated by one milliamp |
27. A One electron when it is accelerated by one ⚡️ volt |
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28. A neutrons has what type of charge |
28. C Neutral |
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29. The unit of meausre of activity is called the a. roentgen b. isotope c. sievert d. curie |
29. D Curie |
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30. At this point the incident x-ray or gamma ray loses energy, it performs ionization at energy levels of about 1.0-0.1 Mev. This is called: a. pair production b. compton effect c. photoelectric effect d. both a and b |
30. B Compton effect |
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31. At this point the incident x-ray or gamma ray energy is so low that it can still eject an electron but has little or no energy left to continue any penetration through the material. This is called: a. pair production b. compton effect c. photoelectric effect d. both a and b |
31. C Photoelectric effect |
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32. A material which is made up of two or more elements is called a:
a. atom b. element c. mineral d. compound |
32. D Compound |
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33. A curie is defined as the amount of any radiosotope that emits: a. 3.7 x 10*10 or 37 billion disintegrations per second b. 37 billion disintegrations per second c. 37 billion disintegrations per minute d. both a and b |
33. D 3.7 x 10*10 or 37 billion disintegrations per second |
